1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 /**************************************************************************************** 19 Portions of this file are derived from the following 3GPP standard: 20 21 3GPP TS 26.173 22 ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec 23 Available from http://www.3gpp.org 24 25 (C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26 Permission to distribute, modify and use this file under the standard license 27 terms listed above has been obtained from the copyright holder. 28 ****************************************************************************************/ 29 /* 30 31 Filename: e_pv_amrwbdec.h 32 Funtions: 33 34 35 Date: 05/03/2007 36 37 ------------------------------------------------------------------------------ 38 REVISION HISTORY 39 40 41 Description: 42 ------------------------------------------------------------------------------ 43 */ 44 45 /*---------------------------------------------------------------------------- 46 ; CONTINUE ONLY IF NOT ALREADY DEFINED 47 ----------------------------------------------------------------------------*/ 48 #ifndef E_PV_AMRWBDEC_H 49 #define E_PV_AMRWBDEC_H 50 51 /*---------------------------------------------------------------------------- 52 ; INCLUDES 53 ----------------------------------------------------------------------------*/ 54 55 #include "pvamrwbdecoder_cnst.h" /* coder constant parameters */ 56 #include "dtx.h" 57 58 /*---------------------------------------------------------------------------- 59 ; MACROS 60 ; Define module specific macros here 61 ----------------------------------------------------------------------------*/ 62 63 /*---------------------------------------------------------------------------- 64 ; DEFINES 65 ; Include all pre-processor statements here. 66 ----------------------------------------------------------------------------*/ 67 68 /*---------------------------------------------------------------------------- 69 ; EXTERNAL VARIABLES REFERENCES 70 ; Declare variables used in this module but defined elsewhere 71 ----------------------------------------------------------------------------*/ 72 73 /*---------------------------------------------------------------------------- 74 ; SIMPLE TYPEDEF'S 75 ----------------------------------------------------------------------------*/ 76 77 /*---------------------------------------------------------------------------- 78 ; ENUMERATED TYPEDEF'S 79 ----------------------------------------------------------------------------*/ 80 81 /*---------------------------------------------------------------------------- 82 ; STRUCTURES TYPEDEF'S 83 ----------------------------------------------------------------------------*/ 84 85 86 typedef struct 87 { 88 int16 old_exc[PIT_MAX + L_INTERPOL]; /* old excitation vector */ 89 int16 ispold[M]; /* old isp (immittance spectral pairs)*/ 90 int16 isfold[M]; /* old isf (frequency domain) */ 91 int16 isf_buf[L_MEANBUF * M]; /* isf buffer(frequency domain) */ 92 int16 past_isfq[M]; /* past isf quantizer */ 93 int16 tilt_code; /* tilt of code */ 94 int16 Q_old; /* old scaling factor */ 95 int16 Qsubfr[4]; /* old maximum scaling factor */ 96 int32 L_gc_thres; /* threshold for noise enhancer */ 97 int16 mem_syn_hi[M]; /* modified synthesis memory (MSB) */ 98 int16 mem_syn_lo[M]; /* modified synthesis memory (LSB) */ 99 int16 mem_deemph; /* speech deemph filter memory */ 100 int16 mem_sig_out[6]; /* hp50 filter memory for synthesis */ 101 int16 mem_oversamp[2 * L_FILT]; /* synthesis oversampled filter memory */ 102 int16 mem_syn_hf[M16k]; /* HF synthesis memory */ 103 int16 mem_hf[2 * L_FILT16k]; /* HF band-pass filter memory */ 104 int16 mem_hf2[2 * L_FILT16k]; /* HF band-pass filter memory */ 105 int16 mem_hf3[2 * L_FILT16k]; /* HF band-pass filter memory */ 106 int16 seed; /* random memory for frame erasure */ 107 int16 seed2; /* random memory for HF generation */ 108 int16 old_T0; /* old pitch lag */ 109 int16 old_T0_frac; /* old pitch fraction lag */ 110 int16 lag_hist[5]; 111 int16 dec_gain[23]; /* gain decoder memory */ 112 int16 seed3; /* random memory for lag concealment */ 113 int16 disp_mem[8]; /* phase dispersion memory */ 114 int16 mem_hp400[6]; /* hp400 filter memory for synthesis */ 115 116 int16 prev_bfi; 117 int16 state; 118 int16 first_frame; 119 dtx_decState dtx_decSt; 120 int16 vad_hist; 121 122 } Decoder_State; 123 124 typedef struct 125 { 126 Decoder_State state; 127 int16 ScratchMem[L_SUBFR + L_SUBFR16k + ((L_SUBFR + M + M16k +1)<<1) + \ 128 (2*L_FRAME + 1) + PIT_MAX + L_INTERPOL + NB_SUBFR*(M+1) \ 129 + 3*(M+L_SUBFR) + M16k]; 130 } PV_AmrWbDec; 131 132 133 /*---------------------------------------------------------------------------- 134 ; END 135 ----------------------------------------------------------------------------*/ 136 #endif 137